Home / 5,324.50-7,986.89-1,861.75

Finding the Fourth Proportional to 5,324.50, 7,986.89 and 1,861.75

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Solution

The fourth proportional to 5,324.50, 7,986.89 and 1,861.75 is: 2,792.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,324.50 : 7,986.89 = 1,861.75 : x
  2. Step 2: Convert to fraction form
    5,324.50/7,986.89 = 1,861.75/x
  3. Step 3: Cross multiply
    5,324.50x = 7,986.89 × 1,861.75
  4. Step 4: Simplify right side
    5,324.50x = 14,869,592.46
  5. Step 5: Solve for x
    x = 14,869,592.46/5,324.50
  6. Step 6: Final answer
    x = 2,792.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.